As far as I can gather, this one is Empire made 😆 .
I would give the problem to Connect via a Part Number Enquiy.
I have always found they do their best and they must have access to a whole lot more info than most of us. You have to remember to check for answers when you visit their site though, as you won’t get an e-mail. With an enquiry like this one, I’d wait three days before checking.
Mike.
I managed to get the number for CDA this afternoon and got a price for the board. Apparently the model is actually CM4SS, although the sticker on the appliance calls that the stock code. I’ve got the go-ahead from the customer so I will order it tomorrow. Thanks anyway.